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Post by gunmutt on Mar 19, 2012 15:34:59 GMT -8
OK so I am building a run and gun recce style shtf rifle. I know I want 5.56 due to the high probably that ammo will be available. 16" mid length gives me legal length and a soft recoil reliable weapon. Its the profile I am torn about. I plan on a 15" Sampson rail that way I get plenty of room to mount accessories and a long sight radius. I know the ltm runs about 2 to 3 oz lighter than the standard profile. But does it give up much on accuracy during sustained fire. I believe it would help balance the gun. Does anyone have an opinion
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Post by GLSHOOTER on Mar 19, 2012 15:40:53 GMT -8
OK so I am building a run and gun recce style shtf rifle. I know I want 5.56 due to the high probably that ammo will be available. 16" mid length gives me legal length and a soft recoil reliable weapon. Its the profile I am torn about. I plan on a 15" Sampson rail that way I get plenty of room to mount accessories and a long sight radius. I know the ltm runs about 2 to 3 oz lighter than the standard profile. But does it give up much on accuracy during sustained fire. I believe it would help balance the gun. Does anyone have an opinion Sustained fire? Like mag dumps? Accuracy will be fine given sane usage of either one. Even mag dumped BHW barrels will do well for you down range. I would be going for the standard profile on a build like you contemplate but I'm all about a well balanced rifle that is a tad muzzle heavy with standard to heavy barrels. I never have gotten in to the light weight set ups. Even my 10" M16 is a heavy barrel!! ;D Greg |
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Post by letaz77 on Mar 19, 2012 17:48:06 GMT -8
I have a 14.5' LTM barrel which I could not love more. 3 to 4 onz doesn't seem like much, but when you are carring it all day it all adds up....this coming from the guy who used to cut the stick out of my toothbrush when I was in the Marines so I wouldn't carry unnecessary weight on my pack.
I strongly believe most shooters underestimate the accuracy of light barrels; even during substained cyclic fire....You asked for an opinion, and there you have it: Go with the LTM, you'll be fine.
Erick
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Post by Warlike on Jul 6, 2012 0:24:28 GMT -8
you will however notice more vertical stringing in a light bbl vs heavy bbl over course of rounds, and bbl warpage is another consideration if you push into high rd counts like some tactical courses demand. This is comin from a 4yr SAW gunner.
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Post by sturmmann on Jul 10, 2012 19:00:23 GMT -8
I too was also trying to figure out which one to go with, but I'm going with an 18" barrel with a rifle length gas system for the best in reliability and softest felt recoil, along with great velocity from the 18" and polygonal rifling combo. I know that light weight barrels get hot faster and rounds can start getting thrown a bit off target, but I'd much rather hump 1/2lb less on my rifle. Also with these barrels being stainless steel and having polygonal rifling (life of 10k+ rounds I'd guess) I can't afford to out shoot them... haha You should check out the 18" length as well, I really like having a rifle length gas system for a little less recoil and the extra velocity to make longer shots with  |
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Post by GLSHOOTER on Jul 11, 2012 9:45:18 GMT -8
I too was also trying to figure out which one to go with, but I'm going with an 18" barrel with a rifle length gas system for the best in reliability and softest felt recoil, along with great velocity from the 18" and polygonal rifling combo. I know that light weight barrels get hot faster and rounds can start getting thrown a bit off target, but I'd much rather hump 1/2lb less on my rifle. Also with these barrels being stainless steel and having polygonal rifling (life of 10k+ rounds I'd guess) I can't afford to out shoot them... haha You should check out the 18" length as well, I really like having a rifle length gas system for a little less recoil and the extra velocity to make longer shots with I don't think we will see 10,000 rounds on any of these barrels for true gilt edge accuracy. 8" plates at 300 yards maybe but when they go they go. The throat is going to wear and while the bore will be in decent shape it just isn;t going to work unless you can chase the lands. Of course with some of these short rounds we are using that is an option for a bit. The best way around worrying about a barrel is to start buying parts for the next one as soon as you get the first. You would be surprised how quickly a guy can save $300.00 in pocket change.  Greg |
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rnish
New Member
Posts: 5
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Post by rnish on Jul 24, 2012 14:24:07 GMT -8
What do I gain in feet per second (FPS) in a 18 inch barrel over a 16 inch barrel?
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Post by GLSHOOTER on Jul 24, 2012 15:03:36 GMT -8
What do I gain in feet per second (FPS) in a 18 inch barrel over a 16 inch barrel? \ It will vary from cartridge to cartridge and caliber to caliber. A rough estimate is 50-100 FPS. Greg |
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Post by dohboy on Dec 25, 2012 6:00:32 GMT -8
I am brand new to this forum and this topic caught me eye since I am trying to decide between an 18" LTR or an 18" STD profile for my next build. This gun will be used for USPSA Multigun. From what I've read so far, it sounds like I won't be losing much performance by going with an LTR profile. What if I were to add fluting as an option to the LTR? Would that change things.
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Post by GLSHOOTER on Dec 25, 2012 10:27:41 GMT -8
I am brand new to this forum and this topic caught me eye since I am trying to decide between an 18" LTR or an 18" STD profile for my next build. This gun will be used for USPSA Multigun. From what I've read so far, it sounds like I won't be losing much performance by going with an LTR profile. What if I were to add fluting as an option to the LTR? Would that change things. Go light as you can get for 3 Gun. I've done a tad of that and you want the whippy gun when you get it. I prefer a standrd over the light but I have shot both and for urban range matches the light gets the nod. Greg |
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Post by dohboy on Dec 26, 2012 14:40:09 GMT -8
Thanks for the advice. Light shall my rifle be. Anything suggestions about having the LTR barrel fluted? Pros or cons?
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Post by GLSHOOTER on Dec 26, 2012 15:08:01 GMT -8
Thanks for the advice. Light shall my rifle be. Anything suggestions about having the LTR barrel fluted? Pros or cons? Not worth the $$'s in my opinuion for any percieved gain but let your pocketbook and tastes be your guide. Greg |
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Post by dohboy on Dec 26, 2012 16:25:59 GMT -8
Thanks for the reply. Although there's no enhanced performance to be gained with fluting on the barrel I'm looking at, I might still do it because of the high "CDI" factor! ;D
Thanks again for your help!
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Post by GLSHOOTER on Dec 26, 2012 17:30:44 GMT -8
Thanks for the reply. Although there's no enhanced performance to be gained with fluting on the barrel I'm looking at, I might still do it because of the high "CDI" factor! ;D Thanks again for your help! Not sure if CDI means Competitor Discommoding Influence but I like to think they look cool.  Greg |
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Post by rick767 on Jan 2, 2013 18:43:33 GMT -8
? so does fluting harm accuracy ?  |
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